Was just looking at the La Plata webcam,https://www.youtube.com/watch?v=l06NXHeXIs8 which is still stuck on 8/14/18, and counted 6 of these cars in the westbound BNSF consist passing the cam at 18:57. WITX,TIMX, ----SRCX, ----CCRX(x2) and a CABX in one train. I had never noticed more than 1 or 2 in a consist there before.
Rick